Fossil flora and stratigraphy of the Florissant Formation, ColoradoDenver Museum of Nature and Science218
Evanoff, Emmett, Gregory-Wodzicki, Kathryn M., and Johnson, Kirk R., editors. 2001. Fossil flora and stratigraphy of the Florissant Formation, Colorado. Denver, CO: Denver Museum of Nature and Science. In Proceedings of the Denver Museum of Nature and Science, 4, no. 1.